Device for automatically winding material onto a core roll

ABSTRACT

A device for automatically winding a predetermined amount of an indefinite length web of material onto a core roll is disclosed which utilizes a transfer roller frictionally engaging the web and core roll to wind the web onto the roll, transfer the core roll to a second station. A cutting device cuts the web after a predetermined amount is wound onto the core roll without interfering with the winding or producing slack in the web.

[4 1 Aug. 5, 1975 United States Patent [1 1 a lma Press Kinoshita..n..w............t.,...

Kameari 2-chome, Kutsushika-ku, Tokyo, Japan Primary Examz'nerEdward J. McCarthy Attorney, Agent, or FirmSughrue, Rothwell, Mion, Zinn & Macpeak [22] Filed: Feb. 19, I974 Appl. No.: 443,575

ABSTRACT [30] Foreign Application Priority Data Feb 16. 1973 4818970 A device for automatically winding a predetermined amount of an indefinite length web of material onto a core roll is disclosed which utilizes a transfer roller frictionally engaging the web and core roll to wind the [52] U.S. 242/56 A [51] Int. .l B65h 19/20 242/56 A, 56 R, 67.! R

Field of Search web onto the roll, transfer the core roll to a second station. A cutting device cuts the web after a predetermined amount is wound onto the core roll without interfering with the winding or producing slack in the web.

References Cited UNITED STATES PATENTS 2,970.786 Justus ll .4 242/56 A 3.087.687 Grettre..v....l...v...lWWW... 242/56 R 10 Claims, 7 Drawing Figures DEVICE FOR AUTOMATICALLY WINDING MATERIAL ONTO A CORE ROLL BACKGROUND OF THE INVENTION 1. Field of the Invention:

This invention relates to a winding a device, and more particularly to a device for winding substantially continuous web of synthetic resin film, cloth, metal foil, yarn, string to be produced or already produced or accumulated by using a core material.

2. Description of the Prior Art The conventional device of this type for winding synthetic resin film, cloth, metal foil, yarn, string continuously produced, has disadvantages in that the web already wound is separated from the main supply rolls so as to cut it when the take-up amount of a core rod reaches a predetermined quantity, the product continuously produced loses its winding power from the time point that the product is separated from the main rolls, and accordingly web taking out is suspended in the free space. This causes the web to lose its tension so difficulties in cutting and winding it on a new core roll and that wound style is lost with the result that the product becomes in zig-zag form. There is another method of cutting the web without separating it from the main roll, but since the web must be cut on the main rolls, as the blade edge moves laterally, the cut web is closely contacted with the main rolls, and, accordingly it is very difficult to wind the web onto a new core roll.

There is still another method of inserting between the main rolls and the product a cutter bearing plate for protecting the main rolls when cutting so as to eliminate these disadvantages, but since the bearing plate brakes the web running on the upper surface thereof, a slack is produced so as to make it difficult to be cut and at the same time interrupts the winding operation.

SUMMARY OF THE INVENTION It is, therefore, an object of the present invention to provide a device for automatically winding a web onto a core roll which eliminates the aforementioned disadvantages of the conventional surface-wound take-up device and automatically sets, cuts and replaces core rolls without stopping the winding operation.

It is another object of the present invention to provide such a device which rotatably mounts transfer rolls at the end of plural arm members extending radially outwardly from a central rotary shaft so as to obtain free space between the transfer rolls and cuts the product in the free space, thereby preventing the transfer rolls from being damaged by the cutter when cutting.

It is still another object of the present invention to provide a device which has a slider bar for guiding a core roll in the above arms and thereby inserting a new core roll in contact therewith to move to the winding position as a mechanism so as to take up the web without losing continuity.

These and other objects, features and advantages of the device for winding a web onto a core roll according to the present invention will become more fully apparent from the following description takin in conjunction with the accompanying drawings, in which:

FIGS. 1, 2 and 3 are cross sectional views of the device of the invention taken along the lines II, II-II and lIIlII in FIG. 4, respectively;

FIG. 4 is a plane view of the device;

FIGS. 5, 6 and 7 are schematic views of movements of core member and rolls.

Referring now to the drawings, which show one embodiment of the device according to the present invention, numeral 1 indicates a frame for supporting the device of the invention, 2 a deck for servicing and inspecting the device or carrying a core member 3, 4 a continuous web, 5 transfer rollers, 6 a central shaft, 7 a moving mechanism, 8 core roll supplying mechanism, 9 a transfer mechanism, 10 a guide mechanism, 11 a cutting mechanism.

Two arm members 12 and 13 are radially secured to central shaft 6 which is rotatably supported to the frame 1 at both ends thereof. Transfer rollers 5 are dis' posed in parallel symmetrically opposite the central shaft 6, both ends of the transfer rollers support shafts I4 and 14 are rotatably attached to arm members 12 and 13. Gear 18 is mounted to shaft I7 supported by the arm member 12. Gear I6 attached to shaft 17, is engaged with gear I5 secured to the respective shafts 14. Gear 19, movably connected to the central shaft 6 engages gears 18. A prime mover 20 is connected to a gear I9 by a chain 21 and chain wheels 22 and 23 so as to impart the rotation of the same direction and speed to the two transfer rollers 5. A transmission device 25 composed of arm members 12 and I3, prime mover 24, and a worm gear for transmitting rotation to the central shaft 6 from the prime mover 24 forms a moving mechanism 7 for intermittiently rotating the transfer rollers 5 around the central shaft 6 180 by l in one direction.

The web 4 is engaged through guide rolls 26, feed rolls 27, extension rolls 28, and back and lower portions of the deck 2 and transfer rollers S disposed at the supply position, and then crosses the upper portion of the central shaft 6 with the transfer rollers 5 disposed at the take-up position, and is taken up on the core roll 3 supported by the guide mechanism 10. This winding operation is conducted while rotating the transfer rollers 5 and 5 at the horizontal plane including the central shaft 6 by the prime mover 20 in clockwise direction as shown in FIG. 1. The guide mechanism 10 has guides 30 and 30 having oblique guide surfaces 29 and 29 toward the lower direction to the transfer rollers 5 resting both ends of the core roll 3 and hydraulic cylinders 32 and 32 for rotating the guides 30 and 30 around the support shaft 31 as a center, and the core roll 3 is so acted that the outside peripheral surface of the wound bundle 33 is always urged onto the outside peripheral surface of the transfer rollers 5 along the guide surfaces 29 and 29 by its weight.

The supply mechanism 8 is composed of guides 35 and 35 having guide surfaces 34 and 34 obliquely downwardly formed toward the transfer rollers 5 resting both ends of the core rolls 3 and feed member 36 for feeding the core rolls 3 one by one so as to contact the transfer rollers 5 at the supply position.

When a predetermined amount of web 4 is wound at the take-up position, the core roll 3 of the supply mechanism 8 is fed in contact with the outside peripheral surface of the transfer rollers 5 of supply position. At the same time the web product 4 is out between the supply and take-up positions. The cutting mechanism 11 has supports 37 supported by arm members 12 and 13 and cutting blade edge 39 running in the direction perpendicular to the longitudinal direction of the web 4 mounted at the end of the rotary arm 38. The web 4 rested between the supply and take-up positions and is rests is cut by the cutting blade edge 39 coming into contact with the web at the supports 37.

When the web 4 is cut, hydraulic cylinder 32 of the guide mechanism is operated so that the guides 30 and 30 are rotated around the support shaft 31 in clockwise direction in HO. 1 so as to incline the guide surface 29 in a direction away from transfer rollers 5, and the core roll 3 held with given take-up bundle 33 is rolled away from the roll 5, and then the guides 30 and 30 return to their initial state as shown in FIG. 1.

Thus, when the take-up bundle 33 is fed away from a take-up position, the prime mover 24 is started so as to impart the rotation to the central shaft 6, and the rolls 5 and 5 at l8() around the central shaft 6. When the transfer roller is moved from the supply position to the take-up position, the core roll 3 moved from the supply mechanism 8 in contact with the transfer 5 by the carrying mechanism 9.

The carrying mechanism 9 has operation arms 40 and 41 of rectangular shape moving in the direction perpendicular to the central shaft 6 along the guides 48 and 49 formed in the arm members 12 and 13, and pickingup pieces 42a, 42b, 43a and 43b formed at both ends, guide rolls 44a, 44b, 45a and 45b, and guide rails 46 and 47, and opposite picking-up pieces 42a and 43a, 42b and 43b fed in and out of the transfer rollers 5 and 5 picks up the both ends of the core roll 3, or releases. More particularly, as shown in FIGS. 5, 6 and 7 the picking-up pieces 430 are disposed at the lower posi tion of the core roll 3 contacting the transfer rollers 5 at the supply position, and at the same time the picking up pieces 420 are not in contact with core roll 3. In this state, when the rotation of central shaft 6 is started, the operation arm 41 moves the inner rolls 45b along the guide rails 47 so that it does not move with respect to the arm members 12 and 13, and accordingly the picking-up piece 43a supports both ends of the core member 3 so as to move it along with the transfer rollers 5 around the central shaft 6, and the operation arm 40 so moves along the arm members 12 and 13 toward the urging direction of the picking up piece 42a since the guide rolls 44a moves along the guide rails 46 as shown in FIG. 5, and when the arm members 12 and 13 rotates 90, the core member 3 is rested on the rolls 5 so as to be retained by the picking up pieces 42a and 43a in FIG. 6. Thus, when the arm members 12 and 13 are further rotated, the operation arm 40 controlled at the po sition with respect to the arm members 12 and 13 by the guide rail 46 holds the state that the picking up pieces 42a supports the core roll 3, and the operation arm 41 moves along the arm members 12 and 13 by the guide rail 47 so as to be disengaged from the core member. Therefore, when the core roll 3 reaches the takeup position, it is removed from the picking up piece 42a by the guides 30 and 30 of the guide mechanism 10, and the arm members 12 and 13 are stopped when becoming horizontal as shown in FIGS. 1, 2 and 3. The following core roll 3 is supported by the picking up pieces 42b and 43b to be carried to the take-up position.

The transfer rollers 5 and 5 are always rotatably driven, and the web 4 is continuously fed by therewith contact.

The core roll 3 mounts two bearings 49 and 50 at each end of its central shaft 48. Wedge members 51 and 52 engage the ends of core member 53 in opposite directions such that when one wedge member 51 is removed, the core member 53 may be removed from central shaft 48 outside bearings 49 and 49 are supported on the supply mechanism 8, guides 35 and 35 of the guide mechanism 10, and guides 30 and 30, while the inside bearings 50 and 50 are supported by the picking up pieces 42a, 42b, 43a, 43b. An adhesive layer is provided on the outside peripheral surface of the core 53 so that the starting end of the take-up product 4 is positively wound on the core roll 3.

lt is appreciated that the core roll 3 is not limited only to the structure shown. If the carrying mechanism 9 contacts the core roll 3 with the transfer rollers 5, any construction can be used. Cutting mechanism 11 may cut by melting the product 4 in addition to the cutting blade edge.

It should be understood from the foregoing description that since the device of the present invention is so constructed that the transfer rollers guided by the core roll in engagement with the wound web is disposed in parallel around the central shaft, and when the web is replaced, the transfer rollers are moved from the supply to take-up positions, and at the same time the core roll is moved together with the transfer rollers in contact therewith, and yet the web is fed in the same direction as that of the moving direction of the rolls and core member, the pick-up product is continuously taken up on the core member when moving, and without slack, and yet since it is taken up on the core roll rotating in contact therewith through the transfer rollers driven in rotation, unnecessary friction is not given to the product as the resistance, and in addition as the take-up bundles is wound at the take-up position to become thick, the core rolls so moves apart from the transfer rollers as to hold always the contacting pressure so as to hold proper tension in winding. Since the cutting of the web is conducted between the supply and take-up positions, there is short wound-start and-end excessively without loss in taking up the product, and at the same time the winding onto the core roll contacted with the rolls can be easily and positively conducted at the supply position.

What is claimed is:

l. A device for automatically winding a predetermined amount of an indefinite length web onto a core roll comprising:

a. means to rotate the core roll to cause a web to be wound on its outer surface,

b. means to supply an indefinite length web material to said rotating means in contact with said outer surface of said core roll,

c. core roll supply means to supply one core roll at a time to said core roll rotating means,

d. core roll take up means to support said core roll after said web has been wound thereon,

e. transfer means to transfer said core roll from said core roll supply means to said take up means, having a plurality of transfer rollers rotatable about axes perpendicular to the direction of travel of the web, and two arm members rotatably supporting each end of said transfer rollers, said arm members being rotatable about a central axis parallel to the transfer rollers axes,

f. means to rotate each of the transfer rollers with respect to said arm members,

g. means to rotate said arm members about the central axis, and

h. cutting means to cut off a predetermined length of web after a portion has been wound onto said core roll.

2. A device according to claim 1 wherein the core roll transfer means also causes the rotation of the core roll to wind the web thereon.

3. A device according to claim 1 wherein said core rolls are caused to rotate by frictional engagement with the surface of one of the driven transfer rollers.

4. A device according to claim 1 wherein one end of the web material is adhesively affixed to the outer surface of the core roll and passes between the core roll and the adjacent transfer roller.

5. A device according to claim 1 wherein said means to rotate said arm members about the central axis comprises a gear attached to one of said arm members via a shaft coincident with said central axis; and a worm gear engaging said gear and driven by a prime mover.

6. A device according to claim 1 wherein said means to rotate each of the transfer rollers comprises a gear affixed to each roller and engaging a driven gear, said driven gears engaging a central gear driven by a prime mover.

7. A device according to claim I wherein each of said arm members have movably mounted thereon two core roll engaging arms, said arms picking up said core roll from said core roll supply means and depositing said core roll at said core roll take up means as said arm members are rotated about the central axis.

8. A device according to claim 7 wherein the movement of said core roll engaging arms relative to said arm members is controlled by engagement of one end of each of said arms with a stationary guide rail as the arm members rotate about the central axis.

9. A device according to claim 1 wherein said cutting -means comprises a blade attached to a plurality of arms pivotable about a common axis perpendicular to the direction of travel of said web such that when said arms are rotated said blade engages said web to sever same.

10. A device according to claim 9 wherein the blade is located intermediate the core roll supply means and the core roll take up means. 

2. A device according to claim 1 wherein the core roll transfer means also causes the rotation of the core roll to wind the web thereon.
 3. A device according to claim 1 wherein said core rolls are caused to rotate by frictional engagement with the surface of one of the driven transfer rollers.
 4. A device according to claim 1 wherein one end of the web material is adhesively affixed to the outer surface of the core roll and passes between the core roll and the adjacent transfer roller.
 5. A device according to claim 1 wherein said means to rotate said arm members about the central axis comprises a gear attached to one of said arm members via a shaft coincident with said central axis; and a worm gear engaging said gear and driven by a prime mover.
 6. A device according to claim 1 wherein said means to rotate each of the transfer rollers comprises a gear affixed to each roller and engaging a driven gear, said driven gears engaging a central gear driven by a prime mover.
 7. A device according to claim 1 wherein each of said arm members have movably mounted thereon two core roll engaging arms, said arms picking up said core roll from saId core roll supply means and depositing said core roll at said core roll take up means as said arm members are rotated 180* about the central axis.
 8. A device according to claim 7 wherein the movement of said core roll engaging arms relative to said arm members is controlled by engagement of one end of each of said arms with a stationary guide rail as the arm members rotate about the central axis.
 9. A device according to claim 1 wherein said cutting means comprises a blade attached to a plurality of arms pivotable about a common axis perpendicular to the direction of travel of said web such that when said arms are rotated said blade engages said web to sever same.
 10. A device according to claim 9 wherein the blade is located intermediate the core roll supply means and the core roll take up means. 